163598 has 4 divisors (see below), whose sum is σ = 245400. Its totient is φ = 81798.

The previous prime is 163573. The next prime is 163601. The reversal of 163598 is 895361.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40898 + ... + 40901.

It is an arithmetic number, because the mean of its divisors is an integer number (61350).

2¹⁶³⁵⁹⁸ is an apocalyptic number.

163598 is a deficient number, since it is larger than the sum of its proper divisors (81802).

163598 is an equidigital number, since it uses as much as digits as its factorization.

163598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81801.

The product of its digits is 6480, while the sum is 32.

The square root of 163598 is about 404.4724959747. The cubic root of 163598 is about 54.6922759911.

The spelling of 163598 in words is "one hundred sixty-three thousand, five hundred ninety-eight".